David k



(No Model.)

D. K. YORGEY. GULTIVATOR I OOTH.

No. 539,888. Patented May 28, 1895.

UNITED STATES PATENT OFFICE.

DAVID K. YORGEY, OF ST. LOUIS PARK, MINNESOTA, ASSIGNOR TO THE MONITORMANUFACTURING COMPANY, OF SAME PLACE.

CU LTlVAT OR-TOOTH.

SPECIFICATION forming part of Letters Patent No. 539,888, dated May 28,1895.

Application filed December 15, 1894. Serial No. 531,960- (No model.)

To all whom it may concern:

Be it known that I, DAVID K. YORGEY, of St. Louis Park, in the county ofHennepin and State of Minnesota, have invented certain new and usefulImprovements in Cultivator-Teeth; andI do hereby declare the followingto be a full,clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to an improvement in cultivator teeth and moreparticularly to such as are reversible, the object of the inventionbeing to so construct the device that two cultivator points will beaccessible for use on a.

non-reversible arm, or that four cultivator points will be accessiblefor use by reversing the parts of device when used with a reversiblearm.

A further object is to produce simple and efiicient means whereby tofirmly secure a cultivator plate or point to the arm which carries it.

With these objects in View the invention consists in certain novelfeatures of construction and combinations and arrangements of parts ashereinafter set forth and pointed out in the claim.

In the accompanying drawings, Figure l is a view illustrating myinvention. Figs. 2 and 3 are sectional views on the lines a; as and y yof Fig. l.

A represents an arm adapted to be reversibly connected with the standardof a cultivator and to receive cultivator plates B, B, at

its respective ends. Each plate B is made with a point a at each end,and to its back a block 0 is riveted or otherwise secured. The

- block 0 of each tooth, is made with parallel Through theseperforations a bolt dis passed, said bolt having a head d on one end andscrew-threaded on its other end for the reception of a suitable nut (1It may be riveted or otherwise fastened. In this manner the plates B, B,are secured to the respective ends of the arm A.

From this construction and arrangement of parts it will be seen that byremoving the bolt 61 the plate can be removed and reversed. By providingeach end of the arm A with a double-pointed reversible plate, it will beseen that four points are accessible and the life of the device willthus be greatly lengthened.

My improvements are exceedingly simple in construction, can bemanufactured at a small cost and are very effectual, in'all respects inthe performance of their functions.

Having fully described my inventiomwhat Iclairn as new, and desire tosecure by Letters Patent, is

The combination with a reversible arm, of a reversible tooth removablyattached to each end of the arm, and a block extending nearly the lengthof the tooth and secured to the back thereof, the rear face of the blockconforming to and adapted to rest against the for- Ward edge of the armwhereby an extended bearing is formed for the block throughout thelength of the latter, and side flanges on the edges of the block, saidflanges embracing the sides of the arm and having a hole at the center,a single bolt, adapted to pass through the flangesand arms and removablysecure the block to the arm, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

DAVID K. YORGEY.

WVitnesses:

N. F. PHILLIPS, LOUIS W. FULLER.

